package cn.tedu.order.tcc;

import cn.tedu.order.entity.Order;
import cn.tedu.order.mapper.OrderMapper;
import io.seata.rm.tcc.api.BusinessActionContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import java.math.BigDecimal;
@Component
public class OrderTccActionImpl implements OrderTccAction{
    @Autowired
    private OrderMapper orderMapper;

    @Transactional
    @Override
    public boolean prepare(BusinessActionContext ctx, Long orderId, Long userId, Long productId, Integer count, BigDecimal money) {
        orderMapper.create(new Order(orderId,userId,productId,count,money,0));
        // 第一阶段成功，保存一个一阶段的成功标记
        ResultHolder.setResult(OrderTccAction.class,ctx.getXid(),"p" );
        return true;

    }
    @Transactional
    @Override
    public boolean commit(BusinessActionContext ctx) {
        // 如果没有标记，二阶段不执行
        //      -第一阶段没有成功
        //      -第二阶段已经执行过，标记已删除
        if(ResultHolder.getResult(OrderTccAction.class, ctx.getXid())==null){
            return true;
        }

        //从上下文对象取出 orderId
        Long orderId = Long.valueOf(
                ctx.getActionContext("orderId").toString());
        // 订单状态改成1，表示正常状态
        orderMapper.updateStatus(orderId, 1);

        // 第二阶段成功，删除标记
        ResultHolder.removeResult(OrderTccAction.class, ctx.getXid());
        return true;
    }
    @Transactional
    @Override
    public boolean rollback(BusinessActionContext ctx) {
        if(ResultHolder.getResult(OrderTccAction.class, ctx.getXid())==null){
            return true;
        }

        Long orderId = Long.valueOf(
                ctx.getActionContext("orderId").toString());
        orderMapper.deleteById(orderId);

        ResultHolder.removeResult(OrderTccAction.class, ctx.getXid());

        return true;
    }
}
